The Suntan Underground
Lunar Tortoise Bio / Polarized G15
Shipping & Returns
Order Process Time
- Most orders ship within 1-2 business days after we receive your purchase (business days exclude weekends and holidays).
- During high-volume periods shipping may be delayed by 2-3 business days.
- Pre-order ship windows vary and are noted on the individual product page.
- Contact us if you have any questions about when your order will ship.
**We are unable to make any changes to an order once it has been placed.**
U.S. Shipping
- FREE shipping on all domestic orders $50+. $5 flat-rate shipping available for orders under $50. Orders will arrive within 3-5 business days from the ship date.
- Faster shipping available for a $10 flat-rate. Orders will arrive within 1-3 business days from the ship date.
- Rush shipping available for a $25 flat-rate. Orders will arrive within 2 business days from the ship date.
- Overnight shipping is available for a $35 flat-rate. Orders will arrive within 1 business day from the ship date.
**Business days exclude weekends and holidays.
International Shipping
- FREE shipping on all international orders $75+. $10 flat-rate shipping for international orders less than $75. Orders will arrive within 1-2 weeks from the ship date.
- $35 expedited shipping is available for international orders via UPS. Orders will arrive within 3-5 business days. Please note that customs processing times are out of our control and may cause additional delays.
**Duties and taxes may apply and will be collected by the shipping carrier upon delivery. These fees are determined by your local government and are separate from any shipping fees paid.
Returns & Exchanges
- We offer FREE returns & exchanges for full refund or store credit on all U.S. domestic orders when claimed within 14 days of your order being delivered. Click here to initiate a return. Only one return/exchange can be created per order.
- International returns can be returned for a refund to the original form of payment or store credit only. We'll refund your order if you cover the return shipping cost within the same 14 day window. Unfortunately, we can't offer free returns or exchanges on international orders at this time.
- Items marked "FINAL SALE" are not eligible for return or exchange.
Fit
The Suntan Underground is a classic sized frame that favors medium and large sized heads. It has a retro tilt that's common in vintage styles.
Size & Fit Details
Size & Fit Details
Measurements
Frame Height
46 mm
Frame Width
141 mm
Lens Width
47.3 mm
Nose Bridge Width
23 mm
Temple Length
145 mm
Nose Bride Width
Frame Height
Lens Width
Frame Width
Temple Length
Fit
Frame Fit
Medium - Wide
Hinge Type
Traditional
Hinge to Hinge Distance
130.9 mm
Hinge to Hinge Distance
Designer's Notes
The Suntan Underground is a classic sized frame that favors medium and large sized heads. It has a retro tilt that's common in vintage styles.
Description
Inspired by iconoclasts of yesteryear, this classic frame stands the test of time.
Materials
Handcrafted bioacetate frames—biodegradable, plant-based, earth-friendlier. Rx-ready.
Polarized CR-39 lenses with 100% UVA/UVB protection.
Optical-grade, stainless steel hardware. 5 barrel hinges. Wire cores for added strength and superior fit.
Featured Review
They fit well and nice quality. Good job!
Featured Review
Great fit. Like the red lenses. Lots of compliments!
Marley J. in Deep Rose Bio
How would you describe your face width? Medium
All reviews (119)
Slide 1 selected
119 reviews
- Emy M.Verified BuyerHow would you describe your face width? MediumHow old are you? 18-24What do you like about your shades? High qualityJun 6, 2025How would you describe your face width? MediumHow old are you? 18-24What do you like about your shades? High qualityReviewingThe Suntan Underground - Black Bio PolarizedRated 5 out of 5 starsThe Suntan Underground!
Overall, a great pair of sunglasses. My go to choice which goes with any outfit, and brings it all together. Thank you to Elijah Berle for putting me on! Saw an ad of him wearing a pair and knew they were the ones to get. They fit super snug and comfortable, also the quality is amazing.
- Moses B.Verified BuyerHow would you describe your face width? WideWhat do you like about your shades? Often complimented, High quality, Durable, Great valueOct 11, 2025How would you describe your face width? WideWhat do you like about your shades? Often complimented, High quality, Durable, Great valueReviewingThe Suntan Underground - Lunar Tortoise Bio PolarizedRated 5 out of 5 starsFINALLY.
Ive been on the look out for the perfect sunglasses for 6 years now and today is the day I finally won. I have a big head and hate how every “wide” sunglasses from other brands think the solution is just making their lenses massive. This sucks because it either, makes me look like a toddler who found their parents sunglasses or a parent trying on their toddlers sunglasses. The Suntan Undergrounds not only have a sleek discreet silhouette that doesn’t make your face feel like there is two planks of wood stapled to your upper sideburns but they’re also incredibly stylish and go with anything and everything. I believe these glasses to be a fusion of something cool jazz players in the late 60’s to 70’s would wear and a better version of R**B*n Wayfarers that don’t make you look like a walking ad for th*m. On top of that, I get so many compliments to the point where I start to question my sexuality. I just pray for an all black version to come soon 🙏
- Kevin J.Verified BuyerHow would you describe your face width? WideWhat do you like about your shades? High qualityOct 3, 2025How would you describe your face width? WideWhat do you like about your shades? High qualityReviewingThe Suntan Underground - Deep Rose BioRated 5 out of 5 starsNice shades
These are sweet. Good quality frames and the red lenses are nice to look through.
- Paul M.Verified BuyerHow would you describe your face width? MediumWhat do you like about your shades? Often complimented, Durable, High quality, Great valueSep 16, 2025How would you describe your face width? MediumWhat do you like about your shades? Often complimented, Durable, High quality, Great valueReviewingThe Suntan Underground - Deep Rose BioRated 5 out of 5 starsThe absolute best!
I have an older pair of the Suntan Underground and was waiting for the chance to order more! I gave one pair to my daughter because she loves them too and her idol, Taylor Swift, was seen wearing Crap brand glasses. I kept one for myself to make sure I always had a pair handy. These will be my “forever” glasses!
- Christina H.Verified BuyerHow would you describe your face width? MediumWhat do you like about your shades? High quality, Durable, Great valueSep 9, 2025How would you describe your face width? MediumWhat do you like about your shades? High quality, Durable, Great valueReviewingThe Suntan Underground - Lunar Tortoise Bio PolarizedRated 5 out of 5 starsLove my suntan undergrounds! Love them so much have them in two colors!
My boyfriend loves crap eyewear, and bought me a pair for my birthday and they are my favorite, super sturdy and cute! Now I have them in black and tortoise and love them both!
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Venice Showroom
228 Main St. #14,
Venice, CA
11 — 5PM, Everyday
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